First off... angel wings to you for what you are doing for your in-laws. Heaven only knows how difficult it is for you and the family living an hour away. Keep quilting for your sanity, it will help in so many ways. I never had my mother living with us when she had alzheimer's, but taking her to doctor appointments and just making sure the day to day was getting done was very daunting, even when other family members helped.
I love the dahlia quilt. I have made one block, just to try the pattern years ago and it is one I dream of making in at least a full size quilt. Oh well, some day.